Security is of huge importance to the computing industry - the growth in e-commerce has brought the topic from the shadows of high-level specialists into the public eye. Nowadays breaches in security for B2C based e-tailers are big news, and damage not only the reputation of the individual organization, but also confidence in the industry as a whole. Computer security covers a multitude of areas ranging from low-level operating system security to higher-level application security. This book concentrates on the latter, and will show you how to protect your applications with cryptography and the Java security model. Beginning with simple examples and clear descriptions of different cryptography approaches, such as symmetric and asymmetric encryption, the book will build in complexity, through consideration of public key infrastructure and SSL, to provide a comprehensive set of solutions for the enterprise Java developer.